This online Spider Solitaire game adds an extra element of tension; you're playing against the clock and you have 10 minutes to resolve the puzzle. This might just be long enough for the 1 suit level, but have a go at the 2 suit level for a real challenge. You do get a bit more time: in level 1 you have 10 minutes, in level 2 you have 12 minutes to try and complete the game, and in the last level you have a quarter of an hour. This version does not let you keep undoing the last move, making this one of the most difficult and most challenging versions of the game to be found on SpiderSolitaireOnline.com.